Top 100 Mobile App Developers in California
The Best of June 2026Looking for a top mobile app development company in California?
Building a mobile app is expensive. In fact, it can cost $10,000 to $150,000, unless you want an out-of-the-box solution with a DIY app builder. So, choosing the right app developer is important because it can save you time and money and result in an app that makes your business stand out.
As you begin the process of hiring an app development company, remember to define the type of app you want before starting conversations with developers. How complex your app idea is will determine your budget and the skill level you need in an app developer. Then, once conversations begin, ask for portfolio items, reviews, and references. Be sure to bring up timeline, too, so you align on expectations.
Overall, with about 90% of time on mobile spent in apps, investing in a mobile app for your business may help attract customers and get your brand in front of more people.
To assist you in your search for a partner, we’ve compiled this list of the top mobile app developers in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Mobile App Development Companies
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961$25,000+10 - 49 employeesSan Jose, CAFounded in 2019, C9xperts Corp is a small San Jose, California-based business intelligence company. Their team specializes in BI & big data consulting & SI and cloud consulting & SI.Read More
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962$25,000+250 - 999 employeesMilpitas, CAEstuate is a software development firm. They were established in 2005 and offer Custom Software Development and Enterprise App Modernization.Read More
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963$50,000+250 - 999 employeesCamarillo, CARead More
Vizuri is a development and computer software company based in Herndon, Va. They were founded in 1986 and have a team of around 250 employees. Their services include custom software development, IT staff augmentation, and IT strategy consulting.
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AetnaIndustries
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964$10,000+50 - 249 employeesSan Francisco, CADouble Coconut is a mobile application development firm. They are in San Francisco, California and Yerevan, Armenia and have a midsize team. Their services include Mobile App Development, Web Development, Blockchain, and Custom Software Development. The firm was founded in 2011.Read More
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EA Sports | Madden NFL Microsoft Casual Games Ellen Degeneres OTG GamesIndustries
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965$10,000+50 - 249 employeesMountain View, CARead More
Forgeahead Solutions is an IT staff augmentation and custom software development company. Established in 1999, the firm is in Mountain View, California; Burnaby, Canada and Pune, India. The midsize team offers IT staff augmentation and custom software development.
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966$5,000+2 - 9 employeesIrvine, CASmall web development firm Softshop, is in Irvine, California. Their services include Web Development and Search Engine Optimization.Read More
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967$1,000+10 - 49 employeesSan Francisco, CAFounded in 2017, RS sIgnatoure Solutions Pvt Ltd. Is a software development firm. The small team provides Custom Software Development and AR/VR development.Read More
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968$5,000+Freelancer employeesSan Francisco, CASiteAppy LLC is an Enterprise App Modernization company. The team focuses on Enterprise App Modernization and Custom Software Development and is in San Francisco, California.Read More
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969Undisclosed50 - 249 employeesPalo Alto, CALaunched in 2013, Data Theorem, Inc. Is an app development firm. Their team focuses on Mobile App Development and IT strategy consulting.Read More
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970Undisclosed50 - 249 employeesSan Francisco, CAAOE is an e-commerce development company launched in 1999. Their team offers E-Commerce Development and Web Design.Read More
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971$10,000+50 - 249 employeesSan Francisco, CARead More
Kodexo Labs, an AI development company, is in Austin, Texas; London, England; Karachi, Pakistan and San Francisco, California. Founded in 2021, the midsize team specializes in Artificial Intelligence, Custom Software Development, Mobile App Development, AI Agents, and more.
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Diesel Laptops (Inc. 5000 — Fleet Diagnostics) Extensiv ($130M+ Funded, Inc. 5000 — 3PL Warehouse Management) IFPG (#1 Franchise Broker Organization, North America) Teacher AI ($5M+ First-Year Revenue — AI Language Platform)Industries
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972$5,000+10 - 49 employeesTracy, CABlockWoods Marketing Management is an Advertising company in Dubai, United Arab Emirates and Chennai, India. Established in 2023, the team focuses on Advertising and Branding.Read More
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973$5,000+250 - 999 employeesSan Francisco, CARead More
Zazmic Inc. is a digital agency that is headquartered in San Francisco with an office Dnipro, Ukraine. It was founded in 2014 and has more than 100 employees who specialize in web development, mobile app development, UX/UI design, mobile & app marketing, and email marketing.
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Rakuten Boostr Valassis UpChooseIndustries
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974Undisclosed10 - 49 employeesLong Beach, CACloud Advisory LLC is an application development company founded in 2011. The small team offers Mobile App Development and Web Development.Read More
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975$10,000+250 - 999 employeesSan Jose, CARead More
Trajectus, a web design agency, is based in Southfield, Michigan and San Jose, California. They provide web design, e-commerce development, enterprise app modernization, application management & support, and more and were founded in 2015.
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976Undisclosed10 - 49 employeesPleasanton, CAXTENDLY is a web development company. The team is headquartered in Pleasanton, California, and their services include Web Development and Mobile App Development.Read More
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977$25,000+50 - 249 employeesSan Francisco, CARead More
UX design agency webkeyz is headquartered in San Francisco, California and Cairo, Egypt. The small agency was established in 2009. Their services include ux/ui design, product design, and branding.
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MicrosoftIndustries
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978Undisclosed50 - 249 employeesDublin, CAUser experience company Canvendor is based in Dublin, California and Chennai, India. The team provides UX/UI Design and IT strategy consulting.Read More
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979$1,000+10 - 49 employeesSanta Ana, CAVibgyorweb Technologies Pvt Ltd is a social media marketing firm established in 2020. Their services include Social Media Marketing and Search Engine Optimization.Read More
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980$1,000+10 - 49 employeesDublin, CAOpal Infotech INC is a SEO company. They are based in Dublin, California. Their team provides Search Engine Optimization and Pay Per Click.Read More
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981Undisclosed2 - 9 employeesLos Angeles, CAFrothlogic, a software development firm, offers Custom Software Development and Mobile App Development. The firm is located in Los Angeles, California.Read More
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982$10,000+10 - 49 employeesWestminster, CASoftware development firm MLTech Soft was launched in 2020. Their small team is located in Ho Chi Minh City, Vietnam; Singapore, Singapore and Westminster, California and focuses on Custom Software Development, IT managed services, Artificial Intelligence, Enterprise App Modernization, and more.Read More
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PSA Marine Private Limited Unilever Vietnam International Company Limited Lof International Dairy Products Joint Stock Company Yen Viet Joint Stock CompanyIndustries
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983$1,000+250 - 999 employeesSan Jose, CAFounded in 2015, InfoStride is an app development company. The firm focuses on Mobile App Development, Web Development, Web Design, Custom Software Development, and more and has a midsize team.Read More
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984$10,000+50 - 249 employeesSunnyvale, CAIT strategy consulting company TransformHub was established in 2019. The team specializes in IT strategy consulting and UX/UI Design and is based in Singapore, Singapore and Sunnyvale, California.Read More
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985$25,000+10 - 49 employeesSan Clemente, CAAdapt360, a software development company, offers Custom Software Development and Web Development. The company is in San Clemente, California.Read More
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986Undisclosed10 - 49 employeesCulver City, CAFounded in 2014, TRINE is a small Event Marketing company. Their team provides Event Marketing and Web Development.Read More
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987$50,000+10 - 49 employeesSan Francisco, CARead More
Blackstone Studio is a custom software development firm. Their small team is located in San Francisco, California and Guadalajara, Mexico and focuses on custom software development. The firm was launched in 2019.
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FerrariIndustries
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988Undisclosed10 - 49 employeesSan Francisco, CAWebloon Studio is a San Francisco, California-based web design agency. Their services include Web Design and Mobile App Development.Read More
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989Undisclosed10 - 49 employeesCorona, CASunztech Intl, a web design company, is located in Corona, California. Their services include Web Design and UX/UI Design.Read More
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990$10,000+2 - 9 employeesRowland Heights, CAClockCode, a software development company, is based in Rowland Heights, California. Their services include Custom Software Development and Web Development.Read More
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